package com.cy.pj.sys.service.impl;

import java.util.List;
import java.util.Map;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.cy.pj.common.exception.ServiceException;
import com.cy.pj.common.vo.Node;
import com.cy.pj.sys.dao.SysMenuDao;
import com.cy.pj.sys.dao.SysRoleMenuDao;
import com.cy.pj.sys.entity.SysMenu;
import com.cy.pj.sys.service.SysMenuService;

import io.micrometer.core.instrument.util.StringUtils;
/**
 * 	此类中负责菜单业务的具体处理
 * @author Administrator
 *
 */
@Service
public class SysMenuServiceImpl implements SysMenuService {
	@Autowired
	private SysMenuDao sysMenuDao;

	
	@Autowired
	private SysRoleMenuDao sysRoleMenuDao;
	@Override
	public List<Map<String, Object>> findObjects() {
		List<Map<String, Object>> list = sysMenuDao.findObjects();
		if(list==null||list.size()==0) {
			throw new ServiceException("没有对应的信息");
		}
		return list;
	}

	@Override
	public int deleteObject(Integer id) {
		//1.验证数据的合法性
		if(id==null||id<1) {
			throw new IllegalArgumentException("请选择");
		}
		//2.统计子菜单数据并效验
		int count=sysMenuDao.getChildCount(id);
		if(count>0) {
			throw new  ServiceException("请先删除子菜单");
		}
		//3.删除角色 菜单关系数据
		sysRoleMenuDao.deleteObjectsByMenuId(id);
		//4.删除菜单元素
		int rows = sysMenuDao.deleteObject(id);
		if(rows==0) {
			throw new ServiceException("此菜单可能已经不存在");
		}
		return rows; 
	}

	@Override
	public List<Node> findZtreeMenuNodes() {
		return sysMenuDao.findZtreeMenuNodes();
	}

	@Override
	public int saveObject(SysMenu entity) {
		if(entity==null) {
			throw new IllegalArgumentException("保存对象不能为空");
		}
		if(StringUtils.isEmpty(entity.getName())) {
			throw new IllegalArgumentException("菜单名不能为空");
		}
		int rows = sysMenuDao.insertObject(entity);
		System.out.println(rows);
		return rows;
	}

	@Override
	public int updateObject(SysMenu entity) {
		//1.合法验证
		if(entity==null) {
			throw new ServiceException("保存对象不能为空");
		}
		if(StringUtils.isEmpty(entity.getName())) {
			throw new ServiceException("菜单名不能为空");
		}
		//2.更新数据
		int rows=sysMenuDao.updateObject(entity);
		if(rows==0) {
			throw new ServiceException("记录可能已经不存在");
		}
		return rows;
	}
}







